h$      Safe-Inferredleanpub-conceptsA description of a coupon. This is just used to remind you of what it was for; it is not visible to users. leanpub-concepts;There is no limit to how many times the coupon may be used.leanpub-concepts3The maximum number of times the coupon may be used.leanpub-conceptsAn identifier for a coupon. leanpub-concepts7An identifier for a book. E.g. if your book is found at https://leanpub.com/your_bookthen your book's slug is  your_book. leanpub-conceptsGet an API key from the  -https://leanpub.com/author_dashboard/settingsLeanpub dashboard. This API key should be kept private; treat it just like your password to your Leanpub account. leanpub-concepts:set -XOverloadedStringsbookURL (BookSlug "your_book")"https://leanpub.com/your_book" leanpub-conceptsE.g. if your book's slug is  your_book and the coupon code is  black_friday, then users can use your coupon via the URL: ,https://leanpub.com/your_book/c/black_friday(Don't just give the code at the end of the coupon to your potential customers, since there's nowhere to type it in on the checkout form.):set -XOverloadedStrings